diff --git a/express-myapp/package.json b/express-myapp/package.json
index f7917fe..c59873a 100644
--- a/express-myapp/package.json
+++ b/express-myapp/package.json
@@ -9,7 +9,7 @@
     "bluebird": "^3.1.1",
     "body-parser": "~1.13.2",
     "cookie-parser": "~1.3.5",
-    "debug": "~2.2.0",
+    "debug": "~4.1.1",
     "express": "~4.13.1",
     "jade": "~1.11.0",
     "morgan": "~1.6.1",